Double roller pulverizer



y 1931. H. s. DICKINSON DOUBLE ROLLER PULVERIZER Filed July 26, 1928 /3 getherbymeans of angle irons '18 and. 19 which" Tongues or other" draft(connections-21am 31 10 and 11 upon wh- Patented May 19, 1931 UNITED PATENT. porno-a HARRY s. nroxr tson, or Momma ILLINOIS, Ass'reivoit 'ro 'THE' new: COM AN or Brenna, 01110, 'A

conronarion or 91-110 fboUB -E QIJ T Application filed m 26,

This invention relates to double roller pulverizers. I I

An object of this invention-'isto provlde an automatically adjusting] draft transmitting means for distributing the force exert t ed by the weights carryingframe between thefront' and rearroller. sections toobtain the bestresults. V

Another object is, to provide a simple and efficient means for ."holding-. the.rear roller section in a raised or inoperativejposition. i [These and other'objects, as will'hereinafter appear, are accomplished by this invention which is fully -'descriloed in the following specification and panying drawings; in,which- Figure l-is an .end elevation of azdo'ublei roller pulverizer embodying the invention, and showing a part of the roller carrying ground. a s ,v V f-Figl 2 is a similar-view 'showing the rollers frame out. away, the rollers being on level on :uneven' ground wherein the front roller is lower than the rearfgy V Fig. 3 is a partial enlarged vi-ewcoffth'e' V geared connection-between the ,roller carrying framejand weightcarrying frame show-,1; in' partof the -former out away;-and I V ig. '4is a ial slightly reduced section ,The embodiment illustrated -.'comprises a" in which there-are two longitudinal shafts ingfandpackingrolls 12 and 13. -Thej shafts 10 andill are journaledv at their ends in 'su'ite;

able bearings carried by the roller carrying frames 14 of which there are two, 'oneat each end of the pulverizer. Each frame is provided with a slot-15 which is'preferably' vertically" disposed .to receive the low-er endare secured thereto by means 'of bolts 20.

in turn secured to the angle irons l8 and-1 ;9'. T e. 9s 1ha 1 W s des 22= n 1 24 w h shown in theaccoma ch are mounted pulveriz 1928. Serial no. 295,423.

are preferably arcuate,

erablyrstruck from a common center. The

the radii being prefengaging surfaces 24 and 25' of the lower end i of 16*of the weightcarrying frame are also made arcuate and "are disk-like in form; the dlameterYof the disk being very slightly lessthan thedifference in length between theradii" I of the arcuate surfaces22 and 23. a

The rolling surfaces: 22 and 24 extend only about half way-across :thezsidewof the slot .15

and the face of the disk'16vrespectively,the

remainder being takenup'by gear" teeth 26'" and. 27.- These-teeth are loosely, meshedg'as is shown in Fi g. 3, so that onlythe/vertical pres sureexerted by the weight of the gearicarr'ying frame 17 is -.pres'sure being 22 and 24. l hus I'fhave provided two mem hers; 7 other :weight.

taken by the teeth, the driving taken by the rolling surfaces one of, whichfltransmits draft and the: 1

T Thetbackgof" the disk -25jis loosely in engagement with the rear wall 23 of; the :slot, so that are held in mesh;

frameand the roller carrying frame with the,

the gear "teeth 26' an'd,27 Y

'This'geared connection :betweentthe weight i gears operating verticallymr with anup andl down motion ,of'olierframe relative to the other, provides a soilpulverizerinwhich the draft. and-weight are transmitted to the v rollers in a way toproduce the best results. As the front roller rises with, respect latter when going over a of contact between a greater force tothe frontroller.

means previously described portion than it is tof'the rear shaft; ""More weight .is

thus placed on the front axle than on the rear to better crush-the clodsand-pack axle so as the soil. Moreover, the pointof draft and support for the weight carrying framebeing to'thejv large clo'd, the point the rollingsurfaces-22and" 24 also rises, thereby automatically applying. a

' ;The automatic draft pressure transmitting I places the greateri of the load on the front shaft since the point of'support is nearer the: front shaft draft is applied witha corresponding increase inpressure on, a

the front shaft and on the pulverizing 'ele i ments carried thereby.- V q --'g I ThiS arrangement provides avery simple below the weight carrying .ably mounted thereon,

and efiicient means for flexibly carrying the Weight carrying frame 17 upon the roller carrying frame let. To disengage these frames, the weight carrying frame 17 is rocked forward until the surface 25 clears the upper end of the surface 23 and the frame 17 can then be lifted bodily out of engagement with the frame 14. 7

If desired, the surfaces 22 and 23 may be made straight so that teeth 26 virtually become part of a straight rack. In either form the effective point of support remains substantially at the same distance from the front and rear shafts 10 and 11- regardless-of the angular posit-ion of the frames 14.

The frames 14 and 17 are provided with holes 28 and 29, respectively, whichare adapted to register as shown in Fig. 2, so that pin or bolt (not shown) may be passed therethrough to lock the'frames in a position in which the rear'shaft 11 is raised. The entire weight is then carriedby the front rollers.

While I have shown and described but a single embodiment of my invention, it is to beunderstood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may bemade which do not depart from the spirit and scope of the invention as covered by the appended claims.

I claim: r 1. A soil pulverizer comprising a weight frame and roller carrying frames disposed below the weight carrying frame and rockably mounted thereon, said mounting including rolling surfaces, gear. teeth adjacent the rolling surfaces for 'preventingrelative slippage therebetween, and means for maintaining said surfaces substantially in contact.

frame and roller carrying frames disposed below the weight carrying frame and rock ably mounted thereon, said mounting including rolling surfaces, 1 gear teeth adjacent the rolling surfaces for preventing relative slip-' page therebetween, and means for maintaining said surfaces substantially incontact, the pitch lines of said gear teeth substantially'coin'ciding with the faces. v n

3. A soil pulverizer comprising a weight frame and roller carrying frames disposed frame. and rockthe roller carrying frame having a vertical slot, the weight carrying framehaving a tongue adapted to fit into said slot, said tongue and slot having interengaging rolling surfaces,and interen} gaging gear teeth adjacent saidsurfaces.

4. A soil pulverlzer comprising a weight frame and roller carrying frame disposed'be lowthe weight carrying frame and rockably having a vertical frame having a tongue adapted to fit into mounted thereon, the roller carrying frame slot, the weight carrying said slot, said tongue and slot having interplane of said rolling sur vertical line, and means engaging rolling surfaces, and interengaging gear teeth adjacent said surfaces, the opposite end of said slot being substantially concentric with the rolling surface of the slot.

5. A soil pulverizer comprising a weight frame and roller carrying frames disposed below the weight carrying frame and rockably mounted thereon, the roller carrying frame having a vertical slot, the weight carrying frame having a tongue adapted to fit into said slot, said tongue and slot having interengaging rolling surfaces, and interengaging gear teeth adjacent said surfaces, the opposite end of said slot being substantially concentric with the rolling surface of the slot, said tongue terminating in a disk, the diam eter of which is substantially the distance between said end and rolling surface.

- 6. Asoil pulverizer comprising a weight frame and roller carrying frames disposed below the ably mounted thereon, the roller carrying frame having a vertical slot, the weight carrying frame having a tongue adapted to fit into saidslot, said tongue and slot having interengaging rolling surfaces,..and interenframe having a vertical slot, the weight carrying frame having a tongue adapted to fit into said slot, said tongue and slot having interengaging rolling surfaces, and interengaging gear teethadjacent said surfaces, said i j slot extending vertically, the point of con-' 2. A soil pulverizer comprising a weight tactof said frames being normally above a line drawn'throughthe centers of the rollers.

'8. A soil pulverizer comprising a weight frame and roller carrying frames disposed below the weightcarrying frame and rockably mounted thereon, said mounting includlng gear teeth engaging alonga substantialvertical line, rolling surfaces limiting the meshing of the gear teeth and means for holding said rolling surfaces in engagement 9. A soil pulverizer comprising a weight frameand roller carrying frames disposed below the weight carrying frame and rock ably mounted thereon, said mounting including gear teeth engaging along a substantiall for holding said gear teeth in engagement, said frames having holes adapted to register'at a predetermined position of the same whereby a bolt-may be inserted to lock'the frames in 's'aid position.

10. A soil pulverizer comprising a weight frame and roller carrying frames disposed below the weight carrying frame and rock ably mounted thereon, the roller carrying frame having a vertical slot, the weight carrying frame having a tongue adapted tofit into said slot, said tongue and slot having interengaging rolling surfaces, and interengaging gear teeth adjacent said surfaces, said slot extending vertically, the point of contact of said frames beingnormally above a line drawn through the centers of the rollers, said frames having holes through the tongue and through the sides of said slot, said holes being adapted to register in a predetermined position of said frames relative to each other to receive a bolt for locking said frames in said position.

11. A soil pulverizer comprising a Weight frame and roller carrying frames disposed below the Weight frame and rockably mounted thereon said mounting including means for transmitting Weight primarly from the Weight frame to the roller carrying frame and including separate 1 means for transmitting draft from the Weight frame to the roller car rying frame, the point of application of the draft between'the tWoframes rising nearly vertically as the front part of the roller car rying frame rises with respect to the rear part thereof. a In testimony where0f, I have hereunto set my hand this 13 day of June, .1928.

HARRY S. DICKINSON. 3 

